Well, they sure did come up with the cure quickly. That's one thing I really like about this show, they move thing along. Though I was expecting that Klaus' blood would be needed to cure the wolf infection that Katherine gave Elena.

And there are more dopplegangers? That might be fun. Especially if Katherine finds a way to insert herself in the new Elena doppleganger! I could see her coming back from hell for that.

Good grief, Bonnie is an idiot. She really can't tell her new intern is an experienced witch? She thinks she's just that good of a teacher?

So Stefan kills Enzo while Enzo is trying to kill Stefan and Elena, but now Stefan thinks they need to keep it secret from Damon? Like Damon won't figure it out, really?

Enzo crossed over through Bonnie, but is still around? I guess that's because the other side is collapsing? Does that mean more folks from the other side are coming back? Or was it just a stupid way to keep Enzo around to cause trouble for Stefan and Elena.

I don't know what they're planning, but that ending was heart-wrenching. A little predictable, since they made such a big deal of Damon promising Elena he'd return.....but I was still crying my eyes out! Damon is my favorite and I can't imagine the show without him

I can understand why Tyler is no longer a hybrid. He was 'cured' of his supernaturalness prior to his death. As far as the others - Stefan's death was not from the magic reversal (removal of heart) and same goes for Enzo. Elena burned to death, but she was somewhat 'cured' prior to that, so not sure. She didn't revert completely back to her drowning death. If both Elena and Stefan are cured, that would put an interesting spin on their future.